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标题:
笔记本电脑维修思路
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作者:
zflzxx
时间:
2006-9-14 04:17
标题:
笔记本电脑维修思路
<b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">笔记本电脑维修思路</span><span lang="EN-US"><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><p><font face="Times New Roman"> </font></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman">1 <p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">首先，先查一下，电源适配器有无电压输出，如有，再查生成</span><span lang="EN-US"><font face="Times New Roman">12V</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">，</span><span lang="EN-US"><font face="Times New Roman">5V</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">，</span><span lang="EN-US"><font face="Times New Roman">3</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">。</span><span lang="EN-US"><font face="Times New Roman">3V</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">的电源供电芯片有没有基准电压和待机电压</span><span lang="EN-US"><font face="Times New Roman">5V</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">，还有电池充电器有没有供电，</span><span lang="EN-US"><font face="Times New Roman">CPU</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">供电电路有没有</span><span lang="EN-US"><font face="Times New Roman">3</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">。</span><span lang="EN-US"><font face="Times New Roman">3V</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">的供电，有没有基准电压，电源管理芯片这边通过场效应管的高低门驱动器有无供电，据不据备待机，查一下没有有保险电阻有没有坏，还有滤波电容，没有有坏！</span><span lang="EN-US"><font face="Times New Roman">
<p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span><p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>2</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">你这种情况，电池充不满电，但电池又确定是好的，很有可能是以下几种情况，供参考：</span><span lang="EN-US"><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span><span style="mso-spacerun: yes;"> </span>1.</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电路提早终止了充电</span><span lang="EN-US"><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>2.</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">场效应管及升压电容损坏</span><span lang="EN-US"><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>3.</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">芯片内部控制参数坏造成，只能是换芯片了</span><span lang="EN-US"><font face="Times New Roman">
<p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">如果能放电不能充电，升压电容和场效应管都没坏，也只有换芯片了。。一般芯片是不容易坏的。。</span><span lang="EN-US"><font face="Times New Roman">
<p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>3</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">不开机的故障，</span><span lang="EN-US"><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span><p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">一看二听三检测。一、看有没有明显的可见的故障。如有没有地方烧焦、变形、崩裂等。闻闻有没有地方有烧焦的糊味。二、开机听听有没有正常或不正常的声响，从那里发出的。三、检测在没有专门工具的情况下只能由万用表测测保险电阻是否烧断，有没有明显的短路等。</span><span lang="EN-US"><font face="Times New Roman">CPU</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、内存条是不是接触良好等都可以测测。注意通电时不能人为短路而造成破坏。</span><span lang="EN-US"><font face="Times New Roman">
<p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"></p></span></b>
作者:
zflzxx
时间:
2006-9-14 04:18
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman">5</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">．显示屏显示不正常，</span><span lang="EN-US"><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">从故障看来有可能是屏或屏线问题：一，检查主板供电上屏是否正常，电压一般为</span><span lang="EN-US"><font face="Times New Roman">1</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">点几伏，</span><span lang="EN-US"><font face="Times New Roman">2</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">点几伏，</span><span lang="EN-US"><font face="Times New Roman">3</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">点几伏。</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span><p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>IBM</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">机因为高压板的供电都是和上液晶屏同一条数据线，所以还有几组为</span><span lang="EN-US"><font face="Times New Roman">5</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">点几伏，</span><span lang="EN-US"><font face="Times New Roman">10</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">点伏左右的电压，当然还有</span><span lang="EN-US"><font face="Times New Roman">0</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">伏则是地线</span><span lang="EN-US"><font face="Times New Roman">!</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">二，如果有供电，检查屏接囗处，用万用表继续量电压。电压值如上</span><span lang="EN-US"><font face="Times New Roman">!</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">如果现在没有电压了就肯定是屏线故障。换一条屏线或用同一耐压的线挑线一条屏线即可，倘若可以就可以排除故障。如果还是故障存在的话，屏也有可能有故障了，这样的情况很少，很少同时存在</span><span lang="EN-US"><font face="Times New Roman">!!!</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">确定到屏的电压正常，则要修屏了。在屏上有块微处理信号芯片，因为没有电路图，所以不能确定每一个脚的工作电压。只能用示波器看这块芯片处理之后的波形是否正确，分两部走</span><span lang="EN-US"><font face="Times New Roman">(</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">一</span><span lang="EN-US"><font face="Times New Roman">)</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">如果不合，就换块同型号芯片即可。如果合，就检查周边的电容。二如果还是不行，就只有换块屏了，因为是屏的压线松动。三，如果没有供电，则要检查显卡输出电压是否稳定，这部分电压是到一块处理信号芯片，然后输出到屏线。如果还是电压还是正常，就可以确定是这块芯片的故障了。换回同型号芯片就可以有电压输出到屏线了，之后可以接着同第二部一样的检查。</span><span lang="EN-US"><font face="Times New Roman">
<p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><p><font face="Times New Roman"> </font></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>6</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">，</span><span lang="EN-US"><font face="Times New Roman">
<p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">首先检查主板上不上电，测一下电源管理芯片</span><span lang="EN-US"><font face="Times New Roman">1632</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">或</span><span lang="EN-US"><font face="Times New Roman">1631</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">（大多数是这两个芯片）的第五脚有没有</span><span lang="EN-US"><font face="Times New Roman">5</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">伏电压，</span><span lang="EN-US"><font face="Times New Roman">21</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">，</span><span lang="EN-US"><font face="Times New Roman">22</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">脚有没有</span><span lang="EN-US"><font face="Times New Roman">16</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">伏和</span><span lang="EN-US"><font face="Times New Roman">5</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">伏。在看看有没有</span><span lang="EN-US"><font face="Times New Roman">2951</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">这个</span><span lang="EN-US"><font face="Times New Roman">8</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">条腿的片子测测他有没有</span><span lang="EN-US"><font face="Times New Roman">5</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">伏</span><span lang="EN-US"><font face="Times New Roman">
<p></p></font></span></b></p>
作者:
zflzxx
时间:
2006-9-14 04:19
<b><span lang="EN-US"><font face="Times New Roman"><p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>7</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">，不开机的检修方法</span><span lang="EN-US">:<p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>1.</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">排除</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电源插座</span><span lang="EN-US">,</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">各模块松动接触不良</span><span lang="EN-US">,</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">主板上的附着物</span><span lang="EN-US">,cpu</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">松动</span><span lang="EN-US">.</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">虚焊等现象</span><span lang="EN-US">.<p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>2.</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">检查</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">主供电保险丝</span><span lang="EN-US">,</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">是否烧毁</span><span lang="EN-US">,</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">如果烧毁</span><span lang="EN-US">,</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">要打电阻值</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">正向不能过小或短路反响可以忽略</span><span lang="EN-US">!(</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">排除隔离电路故障进入下一步</span><span lang="EN-US">)<p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>3.</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">测量</span><span lang="EN-US">,3.3v/5v</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">产生电路</span><span lang="EN-US">/cpu</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">主供电电路</span><span lang="EN-US">/</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电池充电电路</span>
</b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">有无供电电压</span><span lang="EN-US">=</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">适配器电压</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">无则检修相应电路</span><span lang="EN-US">.3.</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电源启动按钮</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">正端</span><span lang="EN-US">
<p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">有无</span><span lang="EN-US">3.5-5v</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电压</span>
</b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">无则检查</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>3.3v/5v</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电路</span><span lang="EN-US">
<p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">一般都有这个电路产生</span><span lang="EN-US">.(3.3v/5v</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">产生电路判断应为没有图纸我们用反向法来判断主板上哪个电路是产生</span><span lang="EN-US">3.3v/5v</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电路</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">首先</span>
</b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">找到</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">内存插槽附近</span>
</b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">的贴片电容</span>
</b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">很明显</span><span lang="EN-US">(</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电路板上的电容</span><span lang="EN-US">95%</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">都是用来滤波</span><span lang="EN-US">)</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">一端和地相连</span><span lang="EN-US">
<p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">另一端就接着</span><span lang="EN-US">3.3v/5v</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">产生电路的输出电感上中间有保险电阻还可以用</span><span lang="EN-US">ps/2</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">鼠标口的供电</span><span lang="EN-US">5v</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">来判断</span><span lang="EN-US">3.3v/5v</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">产生电路</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>(</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">特点笔记本的供电电路都有特点</span><span lang="EN-US">:</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">都是有</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>1</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">个电感</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>2</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">个</span><span lang="EN-US">mos</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">管</span><span lang="EN-US">(8</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">个脚的场效应</span><span lang="EN-US">3</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">极管</span><span lang="EN-US">) </span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">和电源模块</span><span lang="EN-US">(</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">统称了按作用不同分</span><span lang="EN-US">cpu</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">主电压</span><span lang="EN-US">
<p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电池充电</span><span lang="EN-US"> 3.3v/5v</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">产生电路</span>
</b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">这</span><span lang="EN-US">3</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">种电路结构</span>
</b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">很相近</span>
</b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">用反向法就可以区分哪个是什么电路</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>cpu</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">主供电</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>cpu</span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">附近贴片电容</span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><p></p></span></b></p></p></p></font></span></b>
作者:
zflzxx
时间:
2006-9-14 04:20
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">有很多</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>p2</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">以上</span><span lang="EN-US"><font face="Times New Roman">cpu</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">一般采用</span><span lang="EN-US"><font face="Times New Roman">3</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">供电</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">主电</span><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">内核</span><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">外核</span><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">要区分哪个是主电的滤波电容也很简单</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">数量最多的就是主电滤波电容特点</span><span lang="EN-US"><font face="Times New Roman">
<p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">这些电容</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">正连着正</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">负连着负</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">哪组并联的电容数量最多哪组就是</span><span lang="EN-US"><font face="Times New Roman">cpu</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">主电</span><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">顺藤摸瓜找到</span><span lang="EN-US"><font face="Times New Roman"> cpu</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">主电产生电路</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电池充电电路</span><span lang="EN-US"><font face="Times New Roman">
<p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">用电池正极顺藤摸瓜</span><span lang="EN-US"><font face="Times New Roman"> 3.3v/5v</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">产生电路上面说过了</span><span lang="EN-US"><font face="Times New Roman">)<span style="mso-spacerun: yes;"> </span></font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">按下电源按钮</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">就应该产生</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>3.3v/5v/cpu</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">主电等电压</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span><p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">如果没有也是顺藤摸瓜</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">坏哪修哪</span><span lang="EN-US"><font face="Times New Roman">!<p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>4.</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">供电正常了</span><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">就要看看时钟电路有没有供电</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>686</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">机</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">一般有</span><span lang="EN-US"><font face="Times New Roman">2</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">个供电</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>3.3v 2.5</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">分别来自</span><span lang="EN-US"><font face="Times New Roman">3.3v/5v</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">产生电路</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">和</span><span lang="EN-US"><font face="Times New Roman">
<p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>cpu</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">外核电压产生</span><span lang="EN-US"><font face="Times New Roman">)</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">电路</span><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">测试点</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">找边上的</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">贴片电容</span><span lang="EN-US"><font face="Times New Roman">.<p></p></font></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>5.</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">复位电路</span><font face="Times New Roman">
<span style="mso-spacerun: yes;"> </span></font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">比较头痛</span><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">没有芯片资料不是很好找</span><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">就用硬盘的</span><span lang="EN-US"><font face="Times New Roman">pc</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">卡插槽的复位脚</span><span lang="EN-US"><font face="Times New Roman">(</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">不要告诉我你不知道是哪个</span><span lang="EN-US"><font face="Times New Roman">!!!)</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">简单判断一下了</span><span lang="EN-US"><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>6.</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">基本认为供电</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">时钟</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">复位</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">正常我们就要刷新一下</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>bios </font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">笔记高档机刷</span><span lang="EN-US"><font face="Times New Roman">bios</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">千万要备份哦</span><font face="Times New Roman">
</font></b><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">切忌切忌</span><span lang="EN-US"><font face="Times New Roman">
<p></p></font></span></b></p>
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